While mounting an individual terrorist attack costs relatively little, money remains of critical importance for terrorist organizations. Without it, terrorist groups would be incapable of maintaining the broad infrastructure necessary to run an effective organization. Finding means to quickly and securely raise, launder, transfer, store and access funds remains a top priority for all terrorist groups, from al Qaeda and its various globally oriented affiliates to regionally focused groups like Hamas and Hezbollah. Combating terrorist financing must remain an important component of every country's counterterrorism strategy and maintaining international focus and cooperation on this issue is essential. While these are difficult challenges, the potential benefit is significant. Failure to build a truly international counterterror finance regime guarantees that the successes seen in this arena to date will be short-lived. There should be no doubt that if terrorist groups are able to raise, move, store and access funds with relative ease, the threat they pose to the US and its allies would be dramatically increased.